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    Anyway to turn of lights of additional components on laptop to save battery?

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by Juppy, Apr 11, 2009.

  1. Juppy

    Juppy Notebook Enthusiast

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    Is there anyway to turn of the lights of the additional components in laptops to save battery?

    I'm using an Acer Aspire 6930Z and I find the blue neon light of the power button and etc including the Acer logo behind can be attractive and yet be a distraction at night and it drains battery too.

    Is there anyway to turn it off through a custom BIOS or what?
     
    Juppy, Apr 11, 2009
    #1
  2. jackluo923

    jackluo923 Notebook Virtuoso

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    The only light that you should turn off on your laptop is the LCD CCFL backlight. Turning off other light will only gain you less a second of battery life since they uses very little energy.

    Instead of turning off lights.. turn off unused hardware devices like extra usb ports, vga port, card readers...etc from hardware management tool and it'll save you couple minutes to half an hour of battery life.
     
    jackluo923, Apr 11, 2009
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  3. Juppy

    Juppy Notebook Enthusiast

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    Er, do you mean going to Device Manager? If so, turning them off = pressing disable?
     
    Juppy, Apr 11, 2009
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  4. jackluo923

    jackluo923 Notebook Virtuoso

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    opps. device manager... that's waht i meant. either disable or uninstall.
     
    jackluo923, Apr 11, 2009
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  5. Juppy

    Juppy Notebook Enthusiast

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    Er, wow, I only have 3 USB ports and so many USB root hubs are listed. How would I know which do I need to disable, I'm only using one port for the mouse.
     
    Juppy, Apr 11, 2009
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  6. reemreem

    reemreem Newbie

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    Er, do you mean going to Device Manager? If so, turning them off = pressing disable?
     
    reemreem, Apr 11, 2009
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  7. jackluo923

    jackluo923 Notebook Virtuoso

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    Check which roothub is controlling your mouse by looking the "power" tab in the usb root hub properties. Disable all other unused root hubs.
     
    jackluo923, Apr 11, 2009
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  8. Jaguar

    Jaguar Notebook Consultant

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    Hmm. I don't know about disabling unused usb ports. If the port is not drawing any power, then its not ? Have you undervolted ? That's the single most effective thing you can do to conserve energy with software.
     
    Jaguar, Apr 11, 2009
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  9. MidnightSun

    MidnightSun Emodicon

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    You'll probably get like 5 minutes of extra battery life if you turn off unused USB and other ports and lights, if it is even possible (I do not think it is on your particular laptop). Generally, I do not think it is worth the hassle (you'll have to reenable your USB ports again if you plug in anything).
     
    MidnightSun, Apr 11, 2009
    #9
  10. jackluo923

    jackluo923 Notebook Virtuoso

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    In general, about half of those usb root hubs will never get used. That's because they're not connected to anything. They're basically a hub on the chipset with nothing connected. If you have 5 root hubs on your laptop, you get 10 usb ports from the root hubs. If you don't have 10 usb ports on your computer, it's likely that 2 or 3 usb root hubs are not used. You can turn them off and you'll never notice it's disabled unless you do internal hardware modding.
     
    jackluo923, Apr 11, 2009
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  11. stevezachtech

    stevezachtech Notebook Evangelist

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    The lights are not very significant in terms of power consumptions, just use a lamp to compensate with the annoying light.
     
    stevezachtech, Apr 16, 2009
    #11